Filters: Date Range: {"choice":"year"} (X) > partyWithName: Patrick B Shafroth (X)

Filters Date Types (for Date Range) Extensions Citation (1) Types Citation (1) Contacts U.S. Geological Survey U.S. Geological Survey - ScienceBase Emily C Palmquist Pamela L Nagler Ecosystems More... Categories Data (2) Data Release - Revised (2) Publication (1) Tag Types Theme (3) Place (3) USGS Scientific Topic Keyword (3) Harvest Set (3) Science Themes (1) Landscapes (1) Organization (1) More... Tag Schemes None (1) Geographic Names Information System (GNIS) (3) USGS Thesaurus (2) USGS (1) Marine Realms Information Bank (MRIB) keywords (1) ISO 19115 Topic Category (1) https://www.sciencebase.gov/vocab/category/NCCWSC/ScienceThemes (1) More... View Results as: JSON ATOM CSV

Colorado River Delta Project: A compilation of vegetation indices, phenology assessment metrics, and estimates of evapotranspiration for circular bird plots in the Colorado River delta between 2000-2020 (ver. 1.0) These data were compiled to understand the effects of riparian vegetation health on local abundance and species diversity of land birds. The primary objective of our study was to to determine the effects of riparian restoration on birds in the Colorado River delta. These tabular data represent vegetation indices and evapotranspiration (ET) data at varying spatial scales that correspond to avian use circles of 100 to 2000 meters. Three vegetation reflectance indices (VIs): NDVI, EVI, and EVI2 were obtained from Landsat imagery with a biweekly temporal frequency, and covering the entire period of bird surveys (2002-2020). The Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) and two-band... Tags: Arizona, California, Colorado River Delta, EVI, EVI2, All tags... Enhanced Vegetation Index, Mexico, Morelos Dam, NDVI, Normalized Difference Vegetation Index, USGS Science Data Catalog (SDC), Yuma, avian use circles, avian use data, biota, bird abundance, bird diversity, bird richness, bird species, bird-vegetation relationships, birds, circular plots, data release, datasets, evapotranspiration, land use and land cover, marshland habitat, plot sampling, relative abundance analysis, riparian, riparian habitat, sampling sites, time series datasets, two-band EVI, vegetation, vegetation greenness, vegetation index, water use, wetland ecosystems, Fewer tags Vegetation and geomorphic surfaces in the Elwha River delta, Washington, after dam removal, derived from 2016 and 2018 aerial imagery and 2007, 2014, and 2018 field surveys Removal of two large dams from the Elwha River, Washington USA, in 2011-2014 released ~20.5 metric tons (Mt) of impounded sediment, ~5.4 Mt of which was deposited in the river delta and estuary. This dataset presents measurements of geomorphic surfaces, vegetation colonization, and plant community development in the Elwha River delta and estuary after dam removal. Geomorphic surfaces and vegetation colonization were estimated from aerial imagery of the delta and estuary in 2016 and 2018. Plant community development was quantified from field plot surveys of pioneer plant communities on new surfaces in 2014 and 2018 and of established delta and estuarine plant communities on older surfaces in 2007, 2014, and 2018.... Tags: Clallam County, Ecology, Elwha River, Geomorphology, Olympic Peninsula, All tags... Port Angeles, Remote Sensing, USGS Science Data Catalog (SDC), United States of America, Washington, biota, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, geospatial datasets, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Final Report: Projecting Future Climate Effects on Cottonwood and Willow Seed Dispersal and Tree Regeneration in Western Riparian Forests Categories: Publication; Types: Citation; Tags: Climate data, Forests, Landscapes, North Central CASC, Plants, All tags... Rivers, Streams and Lakes, Seed dispersal phenology, Snowpack/snowmelt, South Platte River Basin, Streamflow hydrology, Water, Coasts and Ice, Wildlife and Plants, cottonwood, riparian vegetation, willow, Fewer tags Southwestern Riparian Plant Trait Matrix, Colorado River, Grand Canyon, Arizona (ver. 2.0, January 2022) Trait-based approaches to vegetation analyses are becoming more prevalent in studies of riparian vegetation dynamics, including responses to flow regulation, groundwater pumping, and climate change. These analyses require species trait data compiled from the literature and floras or original field measurements. Gathering such data makes trait-based research time intensive at best and impracticable in some cases. To support trait-based analysis of vegetation along the Colorado River through Grand Canyon, a data set of 20 biological traits and ecological affinities for 179 species occurring in that study area was compiled. This diverse flora shares species with many riparian areas in the western USA and includes species... Categories: Data, Data Release - Revised; Tags: Arizona, Botany, Coconino County, Colorado River, Ecological tolerances, All tags... Ecology, Ecology, Freshwater Ecosystems, Functional traits, Geography, Grand Canyon National Park, Information Sciences, Lees Ferry, Mohave County, Riparian plant species, Southwestern United States, USGS Science Data Catalog (SDC), United States, Vascular Plants, Fewer tags Ecological parameters in the Elwha River estuary before and during dam removal (ver. 2.0, August 2020) The Elwha and Glines Canyon dams were removed from the Elwha River in Washington State from 2011 to 2014. We collected data for a variety of metrics in the estuary and on the river delta before (2006-2011) and during (2012-2014) dam removal to assess how increased sediment transport and deposition affected habitats, vegetation, invertebrates, and fish. Categories: Data, Data Release - Revised; Tags: Aquatic Biology, Ecology, Remote Sensing, Water Quality